MC74HC165AD ONSEMI [ON Semiconductor], MC74HC165AD Datasheet - Page 6

• Manufacturer Part Number: MC74HC165AD
• Description: 8-Bit Serial or Parallel-Input/Serial-Output Shift Register
• Manufacturer: ONSEMI [ON Semiconductor]

INPUTS
A, B, C, D, E, F, G, H (Pins 11, 12, 13, 14, 3, 4, 5, 6)
asynchronously entered in parallel into the internal
flip–flops when the Serial Shift/Parallel Load input is low.
SA (Pin 10)
input is high, data on this pin is serially entered into the first
stage of the shift register with the rising edge of the Clock.
CONTROL INPUTS
Serial Shift/Parallel Load (Pin 1)
this pin, data at the Serial Data input (SA) are shifted into the
register with the rising edge of the Clock. When a low level
Parallel Data inputs. Data on these inputs are
Serial Data input. When the Serial Shift/Parallel Load
Data–entry control input. When a high level is applied to
PIN DESCRIPTIONS
http://onsemi.com
MC74HC165A
6
is applied to this pin, data at the Parallel Data inputs are
asynchronously loaded into each of the eight internal stages.
Clock, Clock Inhibit (Pins 2, 15)
Either may be used as an active–high clock inhibit.
However, to avoid double clocking, the inhibit input should
go high only while the clock input is high.
rates down to DC in a continuous or intermittent mode.
OUTPUTS
Q
noninverted and inverted outputs of the eighth stage of the
shift register.
H
Clock inputs. These two clock inputs function identically.
The shift register is completely static, allowing Clock
Complementary Shift Register outputs. These pins are the
, Q
H
(Pins 9, 7)